Question about Sony Grand WEGA KDF-50WE655 50" Rear Projection HDTV

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Pink splotches on white screen

I'm trying to figure out if this is a dust issue or a bad light engine /optics block. I also have the blue spots through out the field and blue line at the bottom. This I know is and optic block/ light engine issue. can you please advise

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I had a very similar problem with mine... You are correct, it is the optic block.. it will cost about a $1000 or so to fix. I chose to fix my 60" because I absolutely love these TVs. The Technology may be older but they are still great!!!!! (i.e. Instant Picture...no refresh rate required!!!)

If you think you also have a dust issue just get a vacuum cleaner and clean the vents on the back of your TV. You can also remove the Front Panel... take out the lamp (make sure your TV is COLD!!!...trust me on this) and vacuum what you can making sure you do not touch the back mirrors (located where your lamp goes in). You should do this every time you change the lamp at a minimum.

Posted on Nov 29, 2012

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Posted on Jan 02, 2017

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mistersony
  • 320 Answers

SOURCE: blue stars on screen

Sony has extended the warranty for this problem until December 2008, so act quickly to get it repaired. You can find information on getting service here:

http://ciscdb.sel.sony.com/perl/news-item.pl?news_id=206&mdl=KDF50WE655

Be sure to rate this solution. Thanks!

Posted on Nov 13, 2008

  • 2 Answers

SOURCE: looks like dust spots behind screen

I had the same problem and had a tech check it out.
It turned out to be dust on lens and mirror.
cleaned them and good as new.
Ihope this works for you.

Posted on Jan 12, 2008

ctf1800
  • 4402 Answers

SOURCE: bad picture

Sony wega blue dot or star pattern on screen
http://esupport.sony.com/perl/news-item.pl?news_id=206&mdl=KDF42WE655
Models: KDF-42WE655, KDF-50WE655, KDF-55WF655, KDF-60WF655, KDF-55XS955, KDF-60XS955, KF-42WE620, and KF-50WE620
Sony LCD Rear Projection TV - Optical Block Problems
http://splinke.googlepages.com/sonyrearprojectionlcdtv-opticalblock

Posted on Jan 22, 2008

ladywinn
  • 5138 Answers

SOURCE: blue dots blue line across bottom of screen

If your TV is DLP Sony Wega you have either dust/dirt on opitical lense of Light Engine or Bad Light Engine.You really do need to contact Sony they have updated warrranty on Certain Models Do to Alot of Bad Light Engines.

Posted on Aug 22, 2009

  • 68 Answers

SOURCE: Blue splotch in bottom left quadrant of screen

yes this is the optical block call Sony your set has an extended warranty on this optical block until June 30,2010 so you can get it replaced free of charge.

Posted on Sep 08, 2009

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2 Answers

Blue splotches appear on screen. not in any gemetric shape, but appear in same place.


sounds like your light engine is the problem. (optical block) there is a serious of light paths and your blue path is the problem. it can be the blue light filter or blue panel. sorry to bring bad news but this is not a DIY repair unless you are very good in electronics and light filtering plus panel aliment. plus finding those part is very hard. there are places that you can send the engine out to be rebuilt but they are expensive. (250-1000 dollars) sorry for the bad news. hope this help you out. heres more info at http://sites.google.com/site/sonylcdrptvproblems/sonyrearprojectionlcdtv-opticalblock ps i have been fighting this problem with my 60 inch.

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Panasonic projector TV PT-43LC14 has a light yellow splotch on the left hand of the screen. Can this be fixed?


yes and no. it is a burn spot on the light filter on the blue lcd panel due to excessive dust and heat. panasonic does not sell individual parts of the optical engine, so you'll have to replace the entire engine. to avoid it happening again or getting worse, keep the projector cool and dust free. use canned air to blow it out.

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What is the difference between a light engine and optical block?


Light Engine and Optics Block is same thing, main part of DLP TV and multimedia projector to produce and project image on front screen.
Few manufacturer call it light engine and some says it optics block.

Nov 09, 2009 | Sony Grand WEGA KDF-60WF655 60" Rear...

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Blue splotch in bottom left quadrant of screen


yes this is the optical block call Sony your set has an extended warranty on this optical block until June 30,2010 so you can get it replaced free of charge.

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1 Answer

Blue splotches on screen


sorry but u have a bad optical block price $450 - 600 dollar part

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RED/PINK SCREEN W/BLACK SPLOTCHES


The only way to be sure is to have a tech evaluate it for a bad optical block

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No blue colors projected on screen


Only a few causes for this problem. "Splotches" are usually caused by dust in the light engine which can sometimes be blown out using compressed air. Pink picture is caused by either data or burnt lcd card. Procedure for data is: put tv to ch. 3 and turn power off. simultaneously press input and power on set for three seconds to access service menu. Be very careful not to change settings other than what needs changed. These adjustments are changed using directional arrows. Navigate to "memory init" then hold (r) arrow button for 5 seconds. You will know if it worked. Then exit and/or turn set off. Please let me know if this is successful as I have additional info you may need. Good luck, Russmann.

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1 Answer

Bad picture


Sony wega blue dot or star pattern on screen
http://esupport.sony.com/perl/news-item.pl?news_id=206&mdl=KDF42WE655
Models: KDF-42WE655, KDF-50WE655, KDF-55WF655, KDF-60WF655, KDF-55XS955, KDF-60XS955, KF-42WE620, and KF-50WE620
Sony LCD Rear Projection TV - Optical Block Problems
http://splinke.googlepages.com/sonyrearprojectionlcdtv-opticalblock

Jan 19, 2008 | Sony Grand WEGA KF50WE610 50" Rear...

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Screen discoloration on kdf-55wf655


in some cases , the optical block can be blown out with air. It must be remove to do so. if air dos not work , then the optical block will have to be replaced. I have had lots of luck blowning out the dust from the optical block with a air tank , cans of air dont have enough force

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